Trailing 1-0, the Fire stole a point when Amarikwa got control of a headed pass from Austin Berry and volleyed it home for the equalizer.
Sean Johnson made eight saves for Chicago (2-7-2).
Alvaro Saborio, returning after a five-game injury absence, scored in the 78th minute for Salt Lake (6-5-3).
Exploding whale video goes viral on Internet
Gal Gadot cast as Wonder Woman for 'Batman vs. Superman'